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Lonicera japonica Thunb. - Caprifoliaceae - Japanese honeysuckle, Japanisches Geißblatt

Semievergreen vine, flowers fragrant; native to Japan, Korea, eastern China, naturalized and invasive in Australia, New Zealand, the Americas.

Corolla white, later yellow-white: var. japonica; Corolla purple outside, white inside: var. chinensis.
http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200022324

„…the important components that characterize the volatiles of honeysuckle flowers were recognized to be linalool, (Z)-jasmone, (Z)-jasmin lactone, methyl jasmonate, and methyl epi-jasmonate. In addition, changes of the volatile components emitted from the living flowers throughout the whole day were investigated by dynamic headspace analysis…“
[Volatile components of honeysuckle (Lonicera japonica Thunb.) flowers. Ikeda, N., Ishihara, M., Tsuneya, T., Kawakita, M., Yoshihara, M., Suzuki, Y., … & Inui, M., Flavour and fragrance journal, 9(6), (1994), 325-331]

(Z)-jasmone

indole

jasmine lactone

(-)-methyl trans-(Z)-jasmonate

(+)-epi-methyl jasmonate

vanillin

Analysis of the headspace of L.japonica var.chinensis showed linalool as main constituent (71%), (E)-ocimene (8%), jasmone (0.3%), indole (0.3%), jasmine lactone (0.23%), methyl (Z)-jasmonate (0.09%), vanillin (0.01%).
[Meaningful Scents around the World, Roman Kaiser, Zürich 2006, 242-243]

Lonicera japonica var. japonica
Botanical Register, vol.1 t.70 (1815) [S.Edwards]

Lonicera japonica var.chinensis as Lonicera chinensis P. Watson
Curtis’s Botanical Magazine, t.3290-3373, vol.61 [ser.2, vol.8] t.3316 (1834) [S.M.Curtis]
http://plantgenera.org/species.php?id_species=618618